He is the reclusive and enigmatic leader of the world's most famous cult who played best man at TomKat's wedding. But perhaps the biggest mystery shrouding Scientology chairman David Miscavige concerns his wife, Shelly, who has not been seen since 2007. Once a leading Scientologist herself, Shelly Miscavige is even credited as the cupid to Tom Cruise and Katie Holmes' doomed alliance. Always by her husband's side, it was her to whom Mr Miscavige turned when a lovelorn Cruise begged for help in finding love following the break down of his second marriage to Nicole Kidman. Believing the role of...